I just got my board from Karl about a month ago. It's installed. Runs great!

Did you message him via TB? I did send him a PM, but that was only a few days ago, given the holidays he may not be checking in. I'll wait to see if he gets back to me before going the overseas source route.

Plus when I checked with the overseas vendor, they wanted like 400 USD for it... Karl wants 65... I need to go find my emails for the coil and module... most places get over 100 for each, but I got both total for less than that, brand new

Plus when I checked with the overseas vendor, they wanted like 400 USD for it... Karl wants 65... I need to go find my emails for the coil and module... most places get over 100 for each, but I got both total for less than that, brand new

It works!! Thanks to ipdown for helping me figure it out. Karl's board uses NPN transistors to switch the coils' path to ground; these VAG coils I'm using have to use PNP transistors to switch a 5v power feed. So I went to radioshack, got a few transistors (2n3096 I believe), a few 1k ohm resistors, and a small round pcb to mount them on.
And after that whole mess, I had the leads coming out of the EZK box switched, so I was a little angry at first... switched the output leads and she fired right up!

Which coils specifically did you use? I'm thinking of using the standard Volvo application ME7 coils (Bosch 00117)

Did you make a schematic for the COP variation? It's still 1-4, 2-3 correct? Not individual signals..

Do you know if your board is compatible with the IGN-4 module that diyauto sells?? Not trying to plug anyone In your thread, but I was curious if it could considering I am looking to build my own megasquirt in the near future and it would be mega dope if I can re-use components.

It has an input for each cylinder. The waste spark board here has an output for cylinders 1 and 3, and another for 2 and 4. You may be able to feed 2 of the inputs on the IGN-4 with each of the outputs of this board. Do you know what it requires for input voltage/current?

Trying to clarify once and for all the actual wiring of the relay with transistor and resistor for use in cases where stock wiring has been modified / removed.

There is the pic from MS, 500's sketch, and the photo of Karl's actual relay (transistor has shrink wrap so I cannot categorically state which pin is collector & which is emitter. To remove any confusion I'd like to clarify the physical connections required to the relay. I made a diagram with all three plus what appears to me to be the actual wiring required (fig. d), based on the photo of Karl's relay (fig. c)

I have assumed "stock ignition output pin" refers to the feed from EZK box to pin 5 on the stock powerstage, since coil neg and tach feed are connected.

Based on these references, 4 wire connections at the relay are required:

Been in touch with Fabian at Bijlsma Technical Innovations, who replied to my email very quickly (in this silly season, too, which impressed me) with a complete price list for his wasted spark boards and kits, which aren't listed yet on the bijlsmatechnicalinnovations.nl website.

He offers a wide range of choices starting with the board and connector only, right through to a complete kit which includes brackets, coils, etc, as well as a range of EZK and LH 2.4 chips.

A customer of Fabian's has also written to me to say that he's very pleased with the quality and design of his wasted spark board.

It sucks because I really wanted to buy another board or two from Karl, but thankfully it looks like Fabian/Blabla will be selling an alternative.

The BTI version has been available for a couple of years. I would rather have bought from Karl, simply because he has given much support here, however the BTI version is no different in function in terms of WS. No launch, etc. Works as intended.